YOU SAID:
I can't figure out how to turn it off
INTO JAPANESE
私はそれをオフにする方法を理解することはできません
BACK INTO ENGLISH
I can not understand how to turn it off
INTO JAPANESE
私はそれをオフにする方法を理解できません
BACK INTO ENGLISH
I can not understand how to turn it off
You've done this before, haven't you.